Sst+ GPi output neurons provide direct feedback to key nodes of the basal ganglia and drive behavioral flexibility

M Weglage, S Ährlund-Richter, J Fuzik, V Skara… - bioRxiv, 2022 - biorxiv.org
Abstract The GPi-LHb pathway is the main output of the basal ganglia suggested to shape
motivated behaviors. We show here that Sst+ GPi-LHb neurons send direct feedback to key …

Distinct value encoding in striatal direct and indirect pathways during adaptive learning

CH Donahue, M Liu, AC Kreitzer - BioRxiv, 2018 - biorxiv.org
The striatum is thought to play a central role in action selection and reinforcement, and
optogenetic experiments suggest differential roles for direct-and indirect-pathway medium …

[HTML][HTML] Dynamics of striatal action selection and reinforcement learning

J Lindsey, JE Markowitz, SR Datta, A Litwin-Kumar - bioRxiv, 2024 - ncbi.nlm.nih.gov
Spiny projection neurons (SPNs) in dorsal striatum are often proposed as a locus of
reinforcement learning in the basal ganglia. Here, we identify and resolve a fundamental …

Monitoring and updating of action selection for goal-directed behavior through the striatal direct and indirect pathways

S Nonomura, K Nishizawa, Y Sakai, Y Kawaguchi… - Neuron, 2018 - cell.com
The basal ganglia play key roles in adaptive behaviors guided by reward and punishment.
However, despite accumulating knowledge, few studies have tested how heterogeneous …

Basal ganglia role in learning rewarded actions and executing previously learned choices: Healthy and diseased states

G Mulcahy, B Atwood, A Kuznetsov - PLoS One, 2020 - journals.plos.org
The basal ganglia (BG) is a collection of nuclei located deep beneath the cerebral cortex
that is involved in learning and selection of rewarded actions. Here, we analyzed BG …

D1 and D2 systems converge in the striatum to update goal-directed learning

M Matamales, AE McGovern, JD Mi, SB Mazzone… - bioRxiv, 2019 - biorxiv.org
Extinction learning allows animals to withhold voluntary actions that are no longer related to
reward and so provides a major source of behavioral control. Although such learning is …

The enigmatic “indirect pathway” of the basal ganglia: A new role

S Grillner - Neuron, 2018 - cell.com
Goal-directed behavior is processed in the dorsomedial striatum. Using a probabilistic
reward paradigm, Nonomura et al.(2018) show that indirect pathway neurons signal when …

Choice suppression through opponent but not independent function of the striatal indirect pathway

K Delevich, B Hoshal, AGE Collins, L Wilbrecht - bioRxiv, 2019 - biorxiv.org
The dorsomedial striatum (DMS) plays a key role in action selection, but little is known about
how direct and indirect pathway spiny projection neurons (dSPNs and iSPNs) contribute to …

How cortico-basal ganglia-thalamic subnetworks can shift decision policies to maximize reward rate

J Bahuguna, TV Verstynen, J Rubin - bioRxiv, 2024 - biorxiv.org
All mammals exhibit flexible decision policies that depend, at least in part, on the cortico-
basal ganglia-thalamic (CBGT) pathways. Yet understanding how the complex connectivity …

Pallidal spiking activity reflects learning dynamics and predicts performance

E Schechtman, MI Noblejas… - Proceedings of the …, 2016 - National Acad Sciences
The basal ganglia (BG) network has been divided into interacting actor and critic
components, modulating the probabilities of different state–action combinations through …